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<head>
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  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <!-- 视频标签 video
    src 链接到视频地址
    controls 控制条
    autoplay 自动播放
    muted 静音播放
    poster 封面
    loop 循环播放 
    width 宽
    height 高
  -->
  <video width="200px" autoplay loop poster="./音视频/ad7.jpeg" muted src="./音视频/1.mp4" controls></video>
  <!-- 
    音频标签 audio 
    controls 控制条 
    autoplay 自动播放
    muted  静音播放 
    loop 循环播放 
   -->
   <audio autoplay loop muted src="./音视频/1.mp3" controls></audio>
</body>
</html>